Broad flexible nozzle for sole cementing



y 1950 w. L. M KENZIE BROAD FLEXIBLE NOZZLE FOR SOLE CEMENTING 4 Sheets-Sheet 1 Filed April 30, 1947 Invonior mlburLMac/(enzie July 11, 1950 w. M KENZIE BROAD FLEXIBLE NOZZLE FOR s ow CEMENTING 4 Sheets-Sheet 2 Filed April 30, 1947 jnuenior WZburLMackenzie July 11, 1950 w, MacKENZIE 2,514,404

BROAD FLEXIBLE NOZZLE FOR SQLEL CEMENTING Filed Apfil 30, 1947 4 Sheets-Sheet 3 y 1950 w. L. M KENZIE 2,514,404

BROAD FLEXIBLE NOZZLE FOR SOLE CEMENTING Filed April 30, 1947 4 Sheets-Sheet 4 Patented July 11, 1950 UNITED STATES PATENT OFFICE. a 2,514,464 7 f v BROAD FLEXIBLE Nozzle FOR SOLE j' I v CEMENTTNG v W I Wilbur L. MacKenzie, Beverly; Mass., assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application April 30, 1947, Serial No. 745,061

' This invention relates to flexible nozzles for applying coating materials such as cement to shoe soles and especially to soles which have been molded.

The desirability of arranging the delivery outlets of a nozzle in oblique relation to the line of feed in order to apply a band of uniform width which shall be spaced at a uniform distance from the-periphery of the sole has been explained in Letters Patent of the United States No. 2,293,209, granted August 18, 1942, upon my application. In that patent there is disclosed a form of flexible nozzle in Which the adjacent plates or delivery fingers are made successively shorter so as to increase their inclination and position the tips and hence the line of outlet openings in echelon, obliquely to the line of feed, as viewed from above. This arrangement is highly successful where the band of cement to be applied is a fraction of an inch. If, howevenas in the coating of platform soles, it is desired to apply a broader band which will coat substantially the whole of the attaching surface of the sole,'it is found that the increasing inclinationofthe successive plates brings the inmost plate to a substantially vertical position and thus prevents upward yielding,

Accordingly, an object of the invention is to provide an improved nozzle construction enabling an oblique relation of the delivery openings to h the line of feed in relatively wide nozzles. I

In accordance with a feature of the invention, the echelon arrangement of the ends of the delivery members is obtained by mounting members of like lengths upon a pivot pin which is skewed with respect to the sides of the plates. This-arrangement is obtained in the illustrated construction by enlarging the holes in the delivery plates in a horizontal direction so that the pivot pin will pass through them in a skewed relation and contact the plates only at the opposite corners of the holes. It will be observed that this reduces thecost of the nozzle substantially for the simple reason that the plates are identical.

' These and other features of the invention will best be understood from a consideration of the following specification taken in connection with the accompanying drawings in which,

v Fig. 1 shows a nozzle embodying the present invention mounted in a machine designed for the application of cement to shoe soles and viewed in side elevation;

' Fig. 2 is an endelevation on an enlarged'scale of the nozzle and'its mounting;

"Fig. t is a detail view of a single delivery plat in side elevation;

4 Claims. (01; 91-43) Fig. 4 is an angular view of the parts shownin Fig.

Fig. 5 is a similarview of the work-engaging parts showing the nozzle resting'upon the curved shank portion of a molded sole a.

Fig. 6 is a view similar to Fig; 4 but viewing the nozzle from the rear; and I Fig. 7 is an enlarged view of the nozzle'taken in horizontal section through the pivot pin of the delivery members. 1 a

The nozzle l!) is shown mounted upon a bracket 12 which is adjustably attached by a screwto an outstanding arm l6. This arm is secured to the side of a machine frame l8 and acts as a journal for a shaft 20 at the outer'end of which there is supported a feed roll 22. This feed roll is a disk-like member having oblique teeth 24 (Fig. 4) spaced to provide intermediate lands so that the teeth will not dig too deeply into the sole and yet will give a positive feed. A coacting work'supporting feed roll 30' is mounted at the end of a shaft 32 which is journaled in an arm 34 tiltably supported between pivot pins 36 mountedin inwardly extending lugs 38 on the machine frame. This arm 34 has an inward extension 40 forengagement by a treadle rod (not shown) to enable the supportingfeed roll 30 to be lifted. thereby to raise a sole into engagement with the upper feed roll 22 and the'nozzle. On'the'arm 34 there is also another supportingroll 42 and a gage 44.

This gage is of the'type described in Letters Patent of the United States No. 2,073,647, granted March 16, 1937-, upon the application of GA. Newhall and it comprises a roll 46 which is engaged by the edge of the sole, a succeeding roll 48 and underlying fingers 50. As pointed out in the Mac- Kenzie Patent 2,293,209 the oblique relation=of the gage rolls with respect to the endface of the feed roll 22 provides'a line of feed (which is indicated by a line 52 '(Fig. 7) connecting the points of contact between these rolls and the sole) which makes the feeding of the sole substantially automatic by reason of the cross-feed action of the feed roll 22 positioned between and-beside the gages and having a component of feeding force which constantly urges the-soles against these rolls. v

The theory of operation may more readilybe undertood by first considering the actual construction of the nozzle l0 which is made up of. a group of identical delivery members 60. Figs. 2 and 3) which are made from plates and are hinged for .up and down movement upon a pivot pin 62 extending between the positioning faces or sides 64, 66 of a forked block 68.v :Each of these members, the shape of which is shown in Fig. 3, is provided with an outlet opening at the nd of a passage I0. This outlet lies in a groove '12 (Fig. 5) so that the pamage of cement to the work will be unimpeded during the forward movement of thework. Each plate 60 is provided with a hole 14 for there'ception'of the pivot. pin.62 land-sin the: preferred construction this hole is enlarged hori-t zontally to provide flat top and bottom sides and curved ends. When the plates are arranged beetween the parallel sides 64 audit. of the forked member 68, a, pivot pin 62 passingthroug'h'these: elongated holes I4 contacts onl two edges or'the' holes (Fig. 7). But inasmuch. as; onlyrasmalh vertical movement of the work contacting ends of the delivery plates 60 is required there no latter is beveled to receive. that plate-.with the OUIVQdzIOWGI ends-- of these-- wire springs: sliding interooves 58k in. the upper; sides of the.- delivery members. The plane of the spring-carryingpl-ate 82:15 not-quite parallel to-the' plane of. the upper surfacesaof. the-delivermplates; but there is- -not sufficient: divergence between.- them to prevent proper; operation. of the springs 8B.- which. are made of equal length. The delivery-lot coating material such as'cement to the: outlet passages ID of thee delivery members: isefiected as is-usual inzthis: type. of, nozzle through small tubes 86. These-.tubes are supportedin a plate 881 which is attached .to. the. undersideeoi the block 68. andiis provided. with-a recess. 90 communicating. with .a passage 92 .in the blocki68'andextending: to the upper surface-thereof As. inthe. patented. machines. cement under pressure. is.-- supplied to. this passage. 92' through aavalve fittingfi l(Figs. 1 and.2 havingaturn cockasfi. and the: fittingzis 1' connected. to ,a flexible hose Slit-leading. toa pumpvanda receptacle (not shown) within .the frame .of-. the .machine; The tubes. 86-are arrangedin asingleplane so that they may readily, be mounted in awplate such .as that shown :at-ttr. and this :plate -isattached to, an angularl'y related. suriaceiflfi on the block. 68. Tubes .01. equal. length i are soldered to. the plate 88. and; then are. trimmed to bring. their lower ends? approximately. midway of the passages-FIE The angle of the surface 100: is such. that the bending. stress. on :the 'various tubes is uniform. The:blocks 68 (Fig. 4) has-outwardly extending shoulders;- I02 which. rest upon': forked portions Illliof the bracket and in orderthat.-the..noz-. zle may be. conveniently. attached to and. re.- movedirom; the-machine. a. clamp like. is provided: which-'is-pivoteduponthe bloclaGBaand has armsengagingrthe undersidesof the-forked per:- tionsa: I04; At. its upper end.theeclampiis-rprovided with a thumb screw I08 engaging the block 68. The exact position of;theenozzleronsitsr supporting-bracket I2is determined'by'a stop screw |I01(Fig; 4)..

The turning-:otzthe cock as isefieotedzthrough alpha-ital l2 (Fig. 1) connected to the cock through a portion" I I 4:.having-universal jointsand is i-tself supportedzon: theqframe I8 of the machine-by off. aabraoket. M 6. This shaft :-i I 2: is..con-

- connecting themwith pinions I30 and providing a drive gear I32 on the upper shaft.

I-tisswelhunderstood that the band of cement willbe. uniforminlwidth and will lie at a unifornrdistanceiromithe periphery of the sole determinedbythe setting of the bracket [2, if the position of the row of outlet openings in the delivery :members of the nozzle is at an angle A less than a right anglez with respect to the line ofifeed.,52. 7).. Such. a... result. issreadily obtained; will. be seen. from. an. inspection of Fig. .7 by.v utilizing the. skewedgpivot'.pin.fi2,.which; passes through the elongated holes T4 of! the delivery. plates.v Theposition of thelatter. within theliinited required- .ran e. offmovement oftlijeinlower...endseisddetermined by the engagementof the. corners. of the holes H'Lwith, the pin andl by reason. of. thefact thatflthedelivfry platesdll areeke-pt parallel to one another. "the positiom. ing faces. 614Land66' of. theblockfli; As a result; a-lesszcostly, nozzle is provided whichstill' providesran echelon arrangement of' the. ends offthe delivery. memberssuch that. they may be. along, a line forming anangle less than alight, anglewi'th therlinaofieed... I

Having. thusdescribed my .inyention What..-I claimv as, ne.w. andldesire. to. secure. by. Letters BatentoftheUnitedStates is;

1. An extruding. nozzlescomprisinesa grounof similar: delivery membersthe. ends-of. which. are adapted.- to restnon. apiece of.- .work. said delivery membershaving. similarly. positioned :piyotflholes, arsupporting member. for. saictgroup holding. the

delivery-, memberswiththeinsidefaces inparallel positions and permittingpivotal movementof. the ends thereof. toward and. away, from. the work, saiddelivery. members having. passages .terminating, inoutlet-openings in. .the work-contactmg ends' thereof a pivot pin oblique. to. the :side faces of. the. delivery. members. traversin saidpivot holes tOrhDl-d. the outlet openingsin a.line.:wliich is. oblique. to. .theside faces..-the reof, .andrneans for. supplying; coating materialto. said-massages.

2'. .extrudingnozzle. comprising a. supporting member having parallel" inner fa ces, aplurality of substantially identic-al,., pl'atelika, hollow. de-.- livery members positioned by. and. between said faces; said. delivery. members having. pivot. holes which. are. elongated.horizontally, a. pivot pin passin through; said holes and-contacting the corners. thereof to. hold the; ends: of the :plates .in echelon, ,andmeansior. conducting. coating mate, rial throughsaiddeliver members to, thecwo'rk.

3. An extruding; nozzle. comprising a supporting member; having. parallel .positioning.faces, a, Blue rality of substantially identicahdelivery. members positionedr in. parallelrelation t0.,each other. by and between said. faces in position for. theendS oi. the membersto restonapieceof worksaid members having means for conducting. coating material, toothe; work-contacting ends thereof. a pivot pin extendin paralleleto-thework. and oblique to v the: positioning... faces, said-members having apertures elongated in ardirectionrsuhstantially parallel to said work to receive said pin, thereby to position the ends of the delivery members in echelon, and means for supplying coating material to said delivery members.

4. An extruding nozzle comprising a forked supporting member having parallel inner faces, a plurality of substantially identical delivery plates positioned by and between said faces, passages in said plates terminating in the Workcontacting ends thereof, a pivot pin extending across said forked member at an oblique angle with respect to said inner faces, said plates having elongated transverse apertures to receive said pin whereby the lower ends of the nozzle plates adj acent to the work are positioned in echelon as viewed from above, and means for supplying coating material to said passages.

WILBUR L. MACKENZIE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,262,047 Prue Nov. 11, 941 2,293,209 MacKenzie Aug. 18, 1942 

